Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
- changeset 1833
- 314e17ca2c23
- parent 1813
- 9f5b60a14736
- child 1846
- befdf73d6b82
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| 1832:b4776199210f | 1833:314e17ca2c23 |
|---|---|
| 1242 #ifdef _LP64 | 1242 #ifdef _LP64 |
| 1243 __ movptr(dest->as_register(), from_addr); | 1243 __ movptr(dest->as_register(), from_addr); |
| 1244 break; | 1244 break; |
| 1245 #endif // _L64 | 1245 #endif // _L64 |
| 1246 case T_INT: | 1246 case T_INT: |
| 1247 // %%% could this be a movl? this is safer but longer instruction | 1247 __ movl(dest->as_register(), from_addr); |
| 1248 __ movl2ptr(dest->as_register(), from_addr); | |
| 1249 break; | 1248 break; |
| 1250 | 1249 |
| 1251 case T_LONG: { | 1250 case T_LONG: { |
| 1252 Register to_lo = dest->as_register_lo(); | 1251 Register to_lo = dest->as_register_lo(); |
| 1253 Register to_hi = dest->as_register_hi(); | 1252 Register to_hi = dest->as_register_hi(); |
| 1301 } else { | 1300 } else { |
| 1302 __ movb(dest_reg, from_addr); | 1301 __ movb(dest_reg, from_addr); |
| 1303 __ shll(dest_reg, 24); | 1302 __ shll(dest_reg, 24); |
| 1304 __ sarl(dest_reg, 24); | 1303 __ sarl(dest_reg, 24); |
| 1305 } | 1304 } |
| 1306 // These are unsigned so the zero extension on 64bit is just what we need | |
| 1307 break; | 1305 break; |
| 1308 } | 1306 } |
| 1309 | 1307 |
| 1310 case T_CHAR: { | 1308 case T_CHAR: { |
| 1311 Register dest_reg = dest->as_register(); | 1309 Register dest_reg = dest->as_register(); |
| 1313 if (VM_Version::is_P6() || from_addr.uses(dest_reg)) { | 1311 if (VM_Version::is_P6() || from_addr.uses(dest_reg)) { |
| 1314 __ movzwl(dest_reg, from_addr); | 1312 __ movzwl(dest_reg, from_addr); |
| 1315 } else { | 1313 } else { |
| 1316 __ movw(dest_reg, from_addr); | 1314 __ movw(dest_reg, from_addr); |
| 1317 } | 1315 } |
| 1318 // This is unsigned so the zero extension on 64bit is just what we need | |
| 1319 // __ movl2ptr(dest_reg, dest_reg); | |
| 1320 break; | 1316 break; |
| 1321 } | 1317 } |
| 1322 | 1318 |
| 1323 case T_SHORT: { | 1319 case T_SHORT: { |
| 1324 Register dest_reg = dest->as_register(); | 1320 Register dest_reg = dest->as_register(); |
| 1327 } else { | 1323 } else { |
| 1328 __ movw(dest_reg, from_addr); | 1324 __ movw(dest_reg, from_addr); |
| 1329 __ shll(dest_reg, 16); | 1325 __ shll(dest_reg, 16); |
| 1330 __ sarl(dest_reg, 16); | 1326 __ sarl(dest_reg, 16); |
| 1331 } | 1327 } |
| 1332 // Might not be needed in 64bit but certainly doesn't hurt (except for code size) | |
| 1333 __ movl2ptr(dest_reg, dest_reg); | |
| 1334 break; | 1328 break; |
| 1335 } | 1329 } |
| 1336 | 1330 |
| 1337 default: | 1331 default: |
| 1338 ShouldNotReachHere(); | 1332 ShouldNotReachHere(); |
